What’s Vulnerable › Vulnerabilities

CVE-2024-38622: drm/msm/dpu: Add callback function pointer check before its call

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-21 · updated 2026-10-30
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: Add callback function pointer check before its call In dpu_core_irq_callback_handler() callback function pointer is compared to NULL, but then callback function is unconditionally called by this pointer. Fix this bug by adding conditional return. Found by Linux Verification Center (linuxtesting.org) with SVACE. Patchwork: https://patchwork.freedesktop.org/patch/588237/

Affected products

• Linux kernel: from 5.19 before 6.6.33; from 6.7 before 6.9.4 — fixed in 6.6.33, 6.9.4
• Linux: 5.19 — fixed in 6.10

How to fix

Upgrade to a fixed version: Linux kernel 6.6.33, 6.9.4; Linux 6.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/530f272053a5e72243a9cb07bb1296af6c346002
• https://git.kernel.org/stable/c/873f67699114452c2a996c4e10faac8ff860c241
• https://git.kernel.org/stable/c/9078630ed7f8f25d65d11823e7f2b11a8e2f4f0f
• https://git.kernel.org/stable/c/cefb0a99eddf7dd131121a7b348ffbbe32254ec4
• https://git.kernel.org/stable/c/530f272053a5e72243a9cb07bb1296af6c346002
• https://git.kernel.org/stable/c/873f67699114452c2a996c4e10faac8ff860c241
• https://git.kernel.org/stable/c/9078630ed7f8f25d65d11823e7f2b11a8e2f4f0f

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